Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Stop signal response time for rats at 7 and 12 months of age. (A) Mean ± SEM SSRT in five individual countermanding task sessions (light–dark gray) for rats (N = 10) at 7 and 12 months of age. (B) Frequency distribution (n = 50) for the Z change in SSRT for rats (N = 10) comparing mean SSRT in five individual sessions at 12 months of age to their overall mean SSRT over five sessions at 7 months of age.
